Composition of matter and process of manufacturing same.



ATENT ALQNZO RAMSDELL, OF CHICAGO, ILLINOIS.

COMPOSITION OF MATTER AND PROCESS OF MANUFACTURING SAME.

SPECIFICATION forming part of Letters Patent No. 716,276, dated December16, 1902.

Application filed November 4. 1901.

for use in manufacturing agricultural implements and similar articles.

I have discovered that a superior composition may be made from cast-ironby treating it under suitable conditions with a small proportion oflead. The specific method of procedure which I have found to produce thebest results consists in taking cast-iron and melting it in any suitableapparatus and afterward allowing it to 0001 until it becomes somewhatreddish in tint, but is still in a molten condition. For each onehundred pounds of the molten cast-iron I then add nine ounces of leadand stir the mixture, afterward allowing the mass to cool. The result isa product which by reason of its hardness, smoothness, wearingqualities, and freedom from liability to rust is peculiarly fitted forthe manufacture of agricultural implements and similar articles,although it may be used for any other purpose to which it is adapted.

. The proportion of lead added may be varied Serial No. 81 000. (Nospecimens.)

when the molteniron is in theladle from which it is poured into the moldor molds, for when iron which has been treated is again melted itrequires re-treating with lead in order to produce the same product.

That which I claim as my invention, and desire to secure by LettersPatent, is

1. The composition of matter which consists of cast-iron and lead in theproportion, substantially, of one hundred pounds of castiron to fromnine to fifteen ounces of lead, the ingredients being mixed and stirredwhile in a molten condition,substautially as described.

2. The composition of matter formed by melting cast-iron and adding leadthereto while the iron is in a molten condition, in the proportion ofsubstantially nine to fifteen ounces of lead to each one hundred poundsof iron, substantially as described.

3. The method of treating cast-iron which consists in melting the sameand adding lead thereto, while still in a molten condition, in theproportion of from nine to fifteen ounces of lead to one hundred poundsof cast-iron, substantially as described.

4. The method of treating cast-iron which consists in melting the sameand adding lead thereto, while still in a molten condition, in theproportion of from nine to fifteen ounces of lead to one hundred poundsof cast-iron, and then stirring the mixture, substantially as described.

5. The method of treating cast-iron which consists in melting the same,allowing it to cool until it assumes a reddish color, then addingthereto, while still in a molten condition, from nine to fifteen ouncesof lead to each one hundred pounds of iron, and then mixing theingredients, substantially as described,

ALONZO RAMSDELL.

Witnesses:

JULIA M. BRISTOL, LESTER L. BOND.

